Refacing tool for flush valve seats



April 3, 1934. w D, w 1,953,284

REFACING TOOL FOR FLUSH VALVE SEATS Filed Feb. 25, 1933 ,frzmerzzr772M221] M222 i atenied Apr. 3, I3

UNITEE STATES? smear oFrica 2 Claims.

My invention relates to new and useful improvements in reiacing toolsfor flush valve seats and more particularly a hand operated tool thatmay be easily and quickly assembled on a valve seat fixture and adjustedfor manual operation.

An object of the invention is to improve the construction of devices ofthis character which will be relatively inexpensive in the cost ofmanufacture, light in weight, although strong and durable, and which maybe used in connection with flush valve seats of various sizes.

Another object of the invention is to provide means for adjusting theabrasive element so as to be in proper alignment for refacing the valveseat to insure proper or perfect seating of the flush valve or rubberball after the same is reinstalled or a new one substituted for onewhich may be worn out or damaged.

A further object of the invention is to provide, in combination with aflush valve fixture, a bracket adjustably connected with the stand pipeand constructed to fit various sized stand pipes, a guide adjustablymounted in the bracket whereby adjustments of the bracket and said guidewill center said guides relative to the valve seat, and an abrasiveelement mounted on a stem hich is slidably and rotatably mounted in theguide to permit manual operation of said abrasive member for accuratelyrefacing the valve seat.

A still further object of the invention is to provide an abrasiveelement having different sized grinding surfaces to adapt it for use inconnection with difierent sized valve seats.

With these and o her ends in view, this invention consists in thedetails of construction and combination of elements hereinafter setforth and then specifically designated by the claims.

In order that those skilled in the art to which this inventionappertains may understand how 4t to make and use the same, I willdescribe its construction in detail, referring by numerals to theaccompanying drawing forming a part of this application, in which:-

Fig. l is a view of a reiacing tool constructed in accordance with myinvention and showing it applied to a flush valve fixture, a portion ofwhich is shown in section to illustrate the seat.

Fig. 2 is a sectional view of the guide with a portion of the stem ofthe abrasive member therein.

Fig. 3 is a plan view of the bracket showing the manner of connecting itto a stand-pipe.

Fig. 4 is a side elevation of the abrasive member per se.

i Fig. 5 is a top end view thereof.

In carrying out my invention as herein embodied, 10 represents the usualflush valve fixture including an outlet 11, a valve seat 12 on which theusual rubber ball flush valve seats to close ofi the flow of water froma flush tank in which the fixture is mounted, and a standpipe 13 whichacts as an overflow to prevent the water in the tank overflowing the topof said tank.

The usual bracket carrying the guide for the stem of the flush valvewhich is mounted on the overflow or stand-pipe 13 is dislodged orcompletely removed and a bracket 14 then mounted on said stand-pipe.Said bracket 14 has a hole 15 through it to accommodate a stand-pipe ofthe 7 largest diameter manufactured and this hole is brought intoregistration with the stand-pipe and the bracket slipped thereon andclamped in place by a shoe 16 carried by the inner end of the set screw1'7, said shoe working in the recess 13 formed in the back of thebracket and communicating with the hole 15. The screw 17 has threadedconnection with the bracket and the shoe preferably has a swivelconnection with the inner end of the screw. The bracket further includesa pair of spaced arms 19 providing a slot between them open at the outerend.

Between the arms 19 or in the slot 20 is mounted a guide 21 including abushing 22 of considerable length to provide a long bearing for the stemof the abrasive member. The bushing has a flange 23 at one end to engageone edge of both of the arms 19 and is externally threaded as at 24 toreceive the wing or other nut 25 which is of sufficient size to engagethe opposite edges of the arms 19.

The long bearing surface is in the form of a bore 26 runninglongitudinally through the bushing and in this is slidably and rotatablymounted the stem 2'7 which carries the abrasive member 28 on its lowerend, and a suitable handle or Wheel 29 on its upper end.

The abrasive element may be formed of any suitable material and in anydesirable or well known manner, but it is preferred that it have anumber of distinct areas of different diameters and for purposes ofillustration, it is shown with three of such areas 30, 31 and 32. Thearea 32 is of smaller diameter and is located at the bottom of theabrasive element. Said area 32 is adapted to fit a small sized valveseat and is therefore located below the others which are adapted for usewith other larger sized valve seats.

The bushing 22 is of a size to snugly fit in the slot 20 between thearms 10 so that when clamped 1l 0 in place it cannot move about to getout of alignment and the stem 27 must have a sliding fit in the bushingfor the same purpose. In practice, the clamp 14 is mounted on the standpipe 13 with the guide 21 in said bracket and the parts then adjusted sothat the abrasive member will accurately enter the valve seat 12. Afterthis has been done, the handle 29 is gripped and the abrasive memberrotated through the medium of said handle and the stem 27, and atintervals the abrasive member may be lifted out of the seat. to permitthe dislodgement of accumulations of the material which is cut away aswell as any of the abrasive material that may break off. By operatingthe abrasive member in the manner above stated, all of the corrosion onthe seat as well as any protuberances will be ground away and the seatwill be refaced so that the rubber ball will make a proper joint.

It will be obvious that the tool may be readily and quickly assembled onthe flush valve fixture and by only two adjustments the tool will be inproper position for use. After the bracket is adjusted about thestandpipe so as to overlie the ball seat, the guide is adjusted in thebracket until it is centered relative to said ball seat and thereafterthe operations of refacing the seat accurately and-quickly can beaccomplished.

Of course I do not wish to be limited to the these may be varied withinthe limits of the appended claims without departing from the spirit ofmy invention.

Having thus fully described my invention, what I claim as new and usefulis:-

1. A tool of the character described comprising a bracket having a holetherethrough large enough to register with various sized standpipes offlush valve fittings and further provided with a slot at the backthereof communicating with said hole, a set screw having threadedconnection with the bracket for projection into said slot, a clampingshoe slidably mounted in said slot and actuated by the set screw tofasten the bracket in any adjusted position on a standpipe, a pair ofspaced parallel arms providing a slot between them which is open at oneend, a guide including a bushing having a long externally threaded bodyand a head mounted in the slot with the head in engagement with theunder surfaces of the arms, and a nut threaded on the body of thebushing for engagement with the upper surfaces of the arms to clamp theguide in any adjusted position, a stem projecting through the guide andhaving a sliding and rotating fit therein, an abrasive member on thelower end of said stem, and a handle on the upper end of said stem.

2. The structure set forth in claim 1, wherein the abrasive memberincludes three abrasive areas of different diameters, said areasdecreasing in size toward the lower end of the member.

WILLIAM D. WILLARD.

